9– The Prophet (SAWA) said, ‘I advise both the present and the absent ones from my community to accept the invitation of a fellow Muslim, even if it be five miles away, for verily that is a part of religion.’
[al-Mahasin, v. 2, p. 180, no. 1510]

التَّكلُّفُ لِلضَّيفِ / Making a Special Effort for One’s Guest

12– The Prophet (SAWA) said, ‘It is enough of a sin for a man to deem that which brings him close to his fellow brothers as burdensome, and it is enough of a sin for a people to deem burdensome that which draws a fellow brother close to them.’
[al-Mahasin, v. 2, p. 186, no. 1533]

14– Imam al-Sadiq (AS) said, ‘If your brother comes to your house
[uninvited] then offer him whatever you have in the house, and if you invite him, then make a special effort for him.’
[al-Mahasin, v. 2, p. 179, no. 1506]

15– Imam al-Rida (AS) narrated, ‘A man once invited the Commander of the Faithful, Ali (AS) for a meal, so Imam said to him, ‘I will accept your invitation provided you fulfil three conditions.’ The man asked, ‘And what are they, O Commander of the Faithful?’ to which he replied, ‘Do not bring any special food from outside for me, do not preserve anything in the house especially for me, and do not impose any difficulty on your family.’ The man replied, ‘You shall have that O Commander of the Faithful’ and Ali b. Abi Talib accepted his invitation.’
[`Uyoun Akhbar al-Ridha (AS), v. 2, p. 42, no. 138]

17– The Prophet (SAWA) said, ‘When one of you is invited for a meal, he must not bring along his son with him too, for verily it is prohibited for him to do so and he enters the house unlawfully.’
[al-Mahasin, v. 2, p. 181, no. 1515]

18– The Prophet (SAWA) said, ‘A guest may expect to be honoured for two nights, then from the third night onwards he is considered to be one of the family and must eat whatever he gets.’
[al-Kafi, v. 6, p. 183, no. 6]

19– The Prophet (SAWA) said, ‘Hospitality towards a guest is incumbent for the first day, the second day and the third day. After that, anything you give him is considered as charity towards him on your behalf.’
[al-Kafi, v. 6, p. 183, no. 2]

20– The Prophet (SAWA) said, ‘Hosting a banquet the first day is reasonable, the second day is an act of courtesy, and any more than that is showing-off and seeking repute.’
[al-Kafi, v. 5, p. 368, no. 4]

21– Imam al-Baqir (AS) said, ‘When someone enters the house of his fellow brother, he must sit wherever the host tells him to sit for the owner of the house knows the flaws of his own house better than the guest.’
[Bihar al-Anwar, v. 75, p. 451, no. 2]

22– Ibn Abi Ya`afur narrated, ‘I saw a guest once at Abi `Aabdillah’s
[i.e. Imam al-Sadiq (AS)] house, who stood up to get something he needed, so Imam refused for him to do so, and stood up to get it himself, saying, ‘The Prophet of Allah (AS) prohibited that a guest be allowed to do work.’
[al-Kafi, v. 6, p. 283, no. 1]